| 摘要 |
<p>In a pulse compression system using a code series having a self correlation function, which has a sharp peak at a certain point and low side lobes, the number of kinds of usable code series is increased while permitting the level of the side lobes to a certain extent. This system uses a code series having a higher side lobe level of self correlation than an ideal code series as a transmission code series, modulates pulses by this transmission code series, in a primary modulation unit (1), receives and demodulates the pulses in a demodulation unit (2), modulates the demodulated output by a key code series or the difference between the ideal code series and the transmission code series to convert it to the ideal code series in a secondary modulation unit (3), and executes pulse compression processing of this ideal code series in a self correlation processing unit (4). <IMAGE></p> |
